Submitted on: 21 July 2012.
Revised on: 17 October 2012.
Accepted on: 25 November 2012.
___________________ANNALS OF SCIENCE---TAYLOR & FRANCIS LTD
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Submitted on: 12 May 2018.
Revised on: 08 August 2018.
Accepted on: 18 September 2018.
___________________ANNALS OF SCIENCE---TAYLOR & FRANCIS LTD
Submitted on: 02 December 2003.
Revised on: 31 December 2003.
Accepted on: 22 February 2004.
___________________ANNALS OF SCIENCE---TAYLOR & FRANCIS LTD
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Submitted on: 03 July 2006.
Revised on: 17 September 2006.
Accepted on: 01 October 2006.
___________________ANNALS OF SCIENCE---TAYLOR & FRANCIS LTD
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Submitted on: 09 November 2016.
Revised on: 11 December 2016.
Accepted on: 14 January 2017.
___________________ANNALS OF SCIENCE---TAYLOR & FRANCIS LTD
Submitted on: 03 June 2010.
Revised on: 29 July 2010.
Accepted on: 17 September 2010.
___________________ANNALS OF SCIENCE---TAYLOR & FRANCIS LTD